Rock-breaker.



M. QUENNER. ROCK BREAKER. APPLICATION FILED JAN. 24, 1911.

Patented 001121, 1913. v

' 4 SHEETHHEET 1.

M. QUENNER. ROCK BREAKER.

APPLICATION FILED 1min, 1911.

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M. QUENNER.

ROCK BREAKER.

. APPLICATION FILED 111114 1911. I 1

1,076,062, Patented Oct. 21, 1913.

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QWte-omio M. QUENNER.

ROCK BREAKER.

APPLICATION FILED JAN. 24, 1911.

1,076,062. Patented 0ct.2l,1913.

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5141mm Fox I IUNITEI) STATES PATENT OFFICE.

MITTS QUENNEB, OF NOGALES, ARIZONAQASSIGNOB TO QUENNER DRY CRUSHER COMPANY, OF DOUGLAS, ARIZONA, A CORPORATION ARIZONA.

ROCK-BREAKER.

Specification of Letters Patent.

Patented Oct. 21, 1 91s.

7 Application filed January 24, 1911. Serial N 0. 604,406.

To all whom it may 00am I.

Be it known that 1, Mia-is Qunnxicn, a citizen of the United States, residing at Nogales, in the county of Santa Cruz and State of Arizona, have invented certain new and useful Improvements in Rock-Breakers, of which the following is a specification, reference being had therein to the accompanying drawing. f

This invention relates to a method of and machine for breaking up material, such as rock, coal and other substance? The invention comprehends the breaking upof the material by subjecting the .same to'rapid shattering blows and causing the material to be fed in bodies from contrary or opposite directions so that the masses of forming material will be projected against each other and thus augment the breakingup of the material.

The invention also embraces a breaker provided with instrumentalities for confining the material to be treated within a prescribed range. of action, breaking means for shattering the material, and means for feeding the material into the machine from opposite points and through the medium of the breaking device or other instrumentalities projecting the masses of material through the machine to bring the same into a combating or. impacting relation as above sugested. g' The details of-the improved method, and the construction and arrangement of the several parts of my improved machine, found useful in facilitating the carrying of said method into practical efiect will be more readily understood from the specific description hereinafter contained when read in connection with the accompanying drawings art hereof and wherein the preferred em odiment of the invention is illustrated. I y

In the drawings Figure 1 is a side elevation of .the machine, Fig. 2 is an end, view, Fig. 3 is a longitudinal sectional view, Fig. 4 is a transverse sectional view, and Fig. 5 is a detail perspective View, of a fragmentary portion of the projectile carrying shaft and several of the projectiles conneoted thereto.

Referring more specifically to the drawings wherein like reference characters designate corresponding parts in the several views, A represents a strong rigid portable.

supporting base comprising separated parallel bottom beams a, a plurallty of lower transverse beams a, those of each series belng bolted together and to the base beams a, and an upper transverse beam a", one for each series bolted to the lower beams and reinforced against lateral play relative to the machine by I diagonal braces a seated in suitable recesses 01. provided therefor in the top beam a" and the uppermost lower beam a. The details of this supporting framework (three sets of the transverse beams being provided) are advantageous in that it enables the entire apparatus to be shifted from place to place and used without the necessity of installing specially constructed concrete, brick or other stable foundations, as is usual in this art.

An intermediate pair of lower transverse beams E similar to the beams a is provide for a purpose as will later appear.

Sui-table bearings C are provided on and centrally of the top beams a" for the ac commodation of a rotatable shaft D. Similar bearings F arranged in pairs near the ends of the uppermost lower beams a and com-modation of a pair of parallel shafts G I .carrylng properly spaced opposite pairs of flanged wheels H. Driving pulleys J- and g are respectively secured to the shafts D and G for the purpose of rotating these shafts through the medium of belts cl, 9, running from pulleys d", g", on a driven shaft I, receiving its power from any suitable source not necessary to be herein specifically referred to.

It is to be noted that by the arrangement just described the shafts D and G are rotated in the same direction and that, owing to the relative arrangement andsize of the power transmitting means, theshaft D will be rotated at a much greater rate of speed than the speed of rotation of the shaft 9 for a purpose to be later broughtout.

J represents a grizzly or trommel provided at its opposite ends with outwardly projecting supporting flanges h adapted to .rest upon the peripheries of the flanged wheels H, it being hereobserved that the wheels H preferably constitute the only means for supporting the. grizzly or trommel, the latter being held in place by force of gravity, the

respective pairs of wheels being separated to constitute a. firm seat for the grizzly, preventing any tendency of the same to become displaced in a lateral direction, and the flanges of the wheels H engaging the outer edges of the flanges or rings h of the grizzly preventing any endwise movement of the latter.

The grizzly isprovided with nuts or heads j having inturned flanges j carrying the peripheral portion of the grizzly, the same comprising a plurality of curved metal sections K removably bolted, as at k to the flanges, the sections being provided with open portions j constituting discharge openings. The removability of the sections enables them to be readily renewed or interchanged with other sections having openings of different sizes so that in the same machine peripheries having differently sized discharge openings may be utilized.

The frictional engagement between the grizzly and the flanged wheels H is sufiieient to enable the grizzly to be rotated under the actuation of the driven wheels H on one of the shafts/t as hereinabove set forth, the heads j being open for a sufficientextent around the shaft d to permit the grizzly to constantly bear upon the wheels H to insure a firm driving contact therebetween.

Upon the shaft D and arranged within the grizzly is a multitude of projectiles P, each of which is connected to a chain P, which in turn is connected by a two-part collar L to the shaft, secured in place by binding bolts and nuts M. The two parts of the collar are of such formation that the ends thereof when drawn toward each other by the bolts and nuts M will not engage but will leave a space N therebetween for the introduction of the end link of the chain P whereby the bolt M may also constitute the immediate fastening means for the chain, the arrangement being such that the link which engages the bolt may play freely thereon. The projectiles P are preferably steel of angular cross-section and are mounted so that in operation one of the sharp edges thereof is presented forwardly, these projectiles being reversible as will be obvious.

In Fig. 6 it is clearly seen that two of the flexibly mounted projectiles are secured to each of the collars. The arrangement of the collars and projectiles in this instance is important. They may be defined as consisting of two groups one group being arranged at each end of the grizzly and each group having its projectiles occupying a progressively slightly advancing relation to each other so that the general arrangement of the group is that of a spiral, which in operation under the rotation of the shaft causes the projectiles to act somewhat after the manner of a feed screw to effectthe travel of the material heinr treated from the ends of the machine toward the center thereof, it being understood that the two groups of projectiles, so far as theirspiral relation is concerned, are oppositely disposed so that both groups project the material toward the center of the grizzly from the opposite ends thereof.

The projectiles are of course thrown outwardly into their operating position and relation by centrifugal action incident to the rotation of the shaft D and when in this position, viewing the same from the end of the machine the projectiles constitute a practically continuous and effective barrier transversely of the machine preventing es cape of any material past the projectiles without being subject to the blows thereof, and in this connection it will also be noted that the securing collars for the projectiles are arranged in abutting relation to bring the projectiles as close as possible to each other in their spiral relation, the spiral relation being maintained by interlocking the collars together through the medium of gradually advanced interlocking tongues and grooves Z on the collars.

\Vhile the projectiles are thrown out by centrifugal force they are held to a normal circular movement by their flexible connections with the shaft D. It is to be observed, however, that the said connection represents largely a tether confining the projectilesto movements within certain limits. This is advantageous in that when the projectiles strike the material no destructive vibrations are transmitted to the shaft. Again, there practical impedance to the continued movement of the projectiles after the blow has been delivered, the movement of the shaft drawing the projectiles around the rock which may be in the path of the projectiles after impact. Should the impact be delivered or resisted at a point between the projectile and the shaft, the result would be that the projectile would be drawn down by its momentive force on a portion of the rock, the blow being in the direction toward approximately the center of the grizzly. This tethering of the projectiles enables the machine to'be run at a very high rate of speed so that effective blows can be delivered repeatedly on the obstructin material and thus quickly shatter and brea r up the lumps or rock. Q Q are feed hoppers leading to the openings g in the opposite heads or ends of the grizzly, said hoppers being mounted on brackets q g to times R is a hood arranged to deflect the escaping material from the top of the machine down to the ground therebeneath. Dependent upon the character of the work to be treated by the machine the projectiles may be revolved at the rate of from between one hundred and twenty and'two hundred be held stationary at all revolutions per minute to one thousand revolutions per minute, the grizzly being rotated at conveniently onespeed at all times, to wit. approximately twenty revolutions per minute.

The projectiles may be conveniently from five to fifteen pounds in weight. It has been distinguished from grinding and pulverizing by rolls, jaws, stamps or hammers, where it is required that the material be backed up or supported so that thecrushing force will be directed against the material and resisted in the main by the backing or support, the present method contemplates the breaking up. of rock and the like by a shattering'action accomplished by subjecting the material while in a floating, moving or transitory state, as distinguished from a state of rest, to a multitude of rapid shattering blows delivered by the projectiles, the inertia of the material itself being relied on primarily to afford the resistance to the impact blows of the projectiles. In this manner rock of any size even as large as the inlet of the machine will admit may be reduced to predetermined size with' a minimum production of objectionable fines, approximately five or five and one-half per cent.

.Of course it is to be understood that while the invention has for its primary object the provision of a breaker as hereinabove particularly outlined, the machine is capable of use in many connect-ions, rendered so by its capability of adjustment in the matter of relative rotation of the parts and in the matter of the adjustment of the parts to different sizes, etc. The grizzly and projectiles being rotated at the desired speed, and preferably the same direction as-shown, the lumpy substances such as coal, rock or other material, indiscriminately asto size so long as the machme' will receive the same, is fed into the grizzly simultaneously from the opposite ends thereof. Meeting the two oppositely disposed series of projectiles the opposite masses of lumpy material are repeatedly struck with rapid blows from the rotating projectiles, the impacts being delivered in a direction slightly tangent to the wall of .the grizzly. The unshattered parts are-subjected to repeated blows, projecting the rock forward against other moving-bodies of rock and this continuous action of rapidly repeated projectile blows evenly and qgickly shatters the rock without effecting a y material or substantial crushing or pulverizing thereof. An important characteristic of the present machine and method is the projecting of the two masses of rock from opposite directions toward the center of the'machine where the oppositely moving bodies of rock are thrown into a violently combating relation, thus insuring further impact between the rocks themselves and corresponding shattering result. This feeding of the two masses or bodies of rock is of course accomplished in the main through the medium of the oppositely disposed spirals formed by the two sets of projectiles feeding inwardlyfrom the ends to the center of the grizzly.

The rock particles when shattered and broken to the desired size will escape through the discharge openings in the peripheral portion of the grizzly and may be conveyed away as desired.

The grizzly or-trommel is a practical and efficient device to confine the material to be treated within a given zone or range of op-' with a single series of projectiles or a plu rality of oppositely disposed series of beaters, in view of the fact that the same constitutes subject matter of my co-pending application Serial No. 547379, filed-March 4, 1912, nor the underlying method of treating rock, coal or the like which constitutes-the subject matter of my other co-pending application Serial No. 604,407, filed Jan. 24, 1911.

I claim 1. A rock breaker of the character described comprising a surrounding grizzly and a plurality of oppositely disposed longitudinally spaced distinct series of projectiles, in combination with means for rotating the projectiles, substantially as described.

2. A rock breaker of the character described comprising a surrounding grizzly and oppositely disposed longitudinally spaced distinct series of projectiles, in combination with means for rotating the projectiles, and means for rotatingthe grizzly.

3. A rock breaker of the character described comprising a cylindrical grizzly and oppositely disposed longitudinally ,spaced series of projectiles, in combination with means for rotating the projectiles, each series of projectiles being distinct and arranged in spiral relation to project the'matetil rial from the inlets of the grizzly toward the center thereof, and the grizzly being provided with inlets for the material at the ends thereof.

4. A rock breaker of the character described comprising a cylindrical grizzly and oppositely disposed longitudinally spaced series of projectiles, in combination with means for rotating the projectiles, each series of projectiles being arranged in spiral relation to project the material from the ends of the grizzly toward the center thereof, said grizzly having inlets at its ends for v the material to be operated on, and means for rotating the grizzly.

5. A rock breaker of the character described comprising a cylindrical grizzly and a plurality of oppositely disposed longitudinally spaced distinct series of projectiles, in-

combination with means for rotating the projectiles, and means for rotating the grizzly in the same direction as the rotation of the projectiles and at relatively slower speed. 6. A rock breaker of the character described comprising a cylindrical grizzly and oppositely disposed longitudinally spaced series oi'projectiles, in combination with means for rotating the projectiles, each series of projectiles being distinct from the other end arranged in spiral relation to'project the material from the end of the grizzly toward the center thereof, inlets for the material at the ends of the grizzly, and

means for rotating the grizzly in the same direction as the rotation of the projectiles and at relatively slower speed.

7. A rc ck breaker of the character deing the same in separate bodies toward each other to cause a breaking impact therebetween, said means including oppositely disposed distinct series of projectiles.

8. A rock breaker of the character described comprising a rotary apertured grizzly for initially confining the material formed to permit discharge of broken material, and oppositely disposed longitudinally spaced instrumentalities for breaking the rock and for moving the same in separate bodies toward each other to cause a breaking impact therebetween, said means including oppositely arranged distinct, series of spirally disposed projectiles tethered against outward movement to prevent engagement of the same with the grizzly.

In testimony whereof I aflix my signature in presence of two witnesses.

BgIITTS QUENNER.

Witnesses D. A. RICHARDSON, FRANK W. DOAN. 

